LESHAN RADIO COMPANY, LTD. LR432A LINEAR INTEGRATED CIRCUIT 352*5$00$%/(35(&,6,21 5()(5(1&( Description The LRC LR432A is a three-terminal adjustable regulator with a guaranteed thermal stability over applicable temperature ranges.The output voltage may be set to any value between VREF (approximately 1.24V) and 18V with two external resistors. It provides very wide applications,including shunt regulator,series regulator,switching regulator,voltage reference and others. LR432A 1 23 72 72 5HI $QRGH &DWKRGH Features: • Precise Reference Voltage to 1.24V • Guaranteed 1% Reference Voltage Tolerance • Sink Current Capability, 80µA to100mA • Quick Turn-on • Adjustable Output Voltage, Vo=VREF to 18V • 0.2 Ω Typical Output Impedance We declare that the material of product is ROHS compliant and does not contain any B r, Cl, and Sb203 1/4 LESHAN RADIO COMPANY, LTD. LR432A LINEAR INTEGRATED CIRCUIT Absolute Maximum Ratings Symbol VKA IK I REF Tj Topr Parameter Cathode voltage Continuous cathode current range Reference current range Operating Junction Temperature Range Operating Ambient Temperature Electrical Characteristics Symbol TA= 25°C Reference voltage VDEV VREF Temp Deviation ∆VREF/∆VKA Ratio of Change in VREF to Change in Cathode Voltage IREF Reference Input Current IREF(DEV) IREF Temp Deviation Ik(off) Off-state cathode current IK(MIN) Unit V mA mA °C °C ( unless otherwise noted) Parameter VREF Zka Rating 18 100 3 150 - 40 to 105 Dynamic Output Impedance Minimum Operating Current Test Conditions VKA=VREF, lK=10mA (Fig. 1) TA =25°C TA=full range(see Note1) VKA=VREF, lK=10mA(Fig. 1) !K=10mA, VKA=18V to VREF (Fig. 2) IK=10mA, R1 =10kΩ R2=∞ (Fig.2) TK=full range (see Note 1), R1 =10kΩ, R2=∞, IK=10mA (Fig. 2) VREF=0 V,(Fig.3) Vk=18V Vka=Vref, Ik=1mA to 100mA F ≤1kHz (Fig. 1) VKA=VREF(Fig. 1) LR432A Min 1.228 Typ 1.240 Unit Max 1.252 V 10 25 mV -1 -2.7 mV / V 0.25 0.5 µA 0.05 0.3 µA 0.04 0.5 µA 0.2 0.4 Ω 60 80 µA 2/4 LESHAN RADIO COMPANY, LTD. LR432A LINEAR INTEGRATED CIRCUIT Fig.1 Test Circuit for Vka=Vref, Vo=Vka=Vref, Co=0.1µF Fig.2 Test Circuit for Vka>Vref, Vo=Vka=Vref·(1+R1/R2)+Iref·R1, Co=0.1µF Fig.3 Test Circuit for Ik(off) 3/4 LESHAN RADIO COMPANY, LTD. LINEAR INTEGRATED CIRCUIT LR432A TO-92 PACKAGE OUTLINE DIMENSIONS D1 E C A A1 D b L ¶ e e1 Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 3.300 3.700 0.130 0.146 A1 1.100 1.400 0.043 0.055 b 0.380 0.550 0.015 0.022 c 0.360 0.510 0.014 0.020 D 4.400 4.700 0.173 0.185 D1 3.430 E 4.300 0.169 1.270TYP e e1 0.135 4.700 0.185 0.050TYP 2.440 2.640 0.096 0.104 14.100 14.500 0.555 0.571 1.600 ¶ 0.000 0.380 0.063 0.000 0.015 4/4